More than 25,000 people in Denmark, are each year diagnosed with commotio cerebri as a result of head trauma (National Patient Registry, 1996), and foreign studies report that up to 5 to 15% of these have symptoms that persist beyond 3 months (5). Post commotio symptoms (PCS) are typically divided into physical, cognitive and emotional symptoms and include headache, fatigue, memory loss, stress, etc.. It is known from previous studies of traumatic brain injuries that the cost of the disabling process and the failure to intervene in the long term are very costly (11). In Denmark there are to date no systematic or consistent treatment for people with persistent symptoms 3 months after commotio cerebri, and a lack of general knowledge about the pathology and standardization with regard to diagnosis and prognosis are also missing.